HELP NEEDED!!!
80.0 mL of Ba(OH)2(aq) solution is used to completely titrate 60.0 mL of 0.150 mol/L HCl(aq) solution. What is the concentration of the barium hydroxide solution in mol/L.

Approximately 0.769 moles of ice can be melted, heated to its boiling point, and completely boiled away by supplying 36 kJ of heat.

To calculate the number of moles of ice that can be melted, heated to its boiling point, and completely boiled away, we use the formula q = nΔH, where q is the heat supplied, ΔH is the enthalpy of fusion plus the enthalpy of vaporization, and n is the number of moles of ice.

Considering that the ice is being heated from 0°C to 100°C, we need to account for the enthalpy change of fusion and vaporization. The enthalpy of fusion of ice is 6.01 kJ/mol, and the enthalpy of vaporization of water is 40.7 kJ/mol.

ΔH = enthalpy of fusion + enthalpy of vaporization

ΔH = 6.01 + 40.7

ΔH = 46.71 kJ/mol

Now, we can calculate the number of moles of ice:

n = q / ΔH

n = 36 / 46.71

n = 0.7694... ≈ 0.769 moles (rounded to 3 decimal places)

Therefore, approximately 0.769 moles of ice can be melted, heated to its boiling point, and completely boiled away by supplying 36 kJ of heat.

Learn more about boiling point

https://brainly.com/question/2153588

#SPJ11

The segment register that can be used to form the source operand address in the instruction MOV AX, 100[BP][SI] is DS (Data Segment).

Without knowing the base for Y, it is not possible to establish a direct relationship between the three unsigned numbers X=1001001B, Y=120Q, and Z=5EH.

In the instruction MOV AX, 100[BP][SI], the segment register that can be used to form the source operand address is DS (Data Segment). The DS register holds the segment base address, which is added to the effective address to calculate the physical address of the source or destination data.

Regarding the relationship between the three unsigned numbers X=1001001B, Y=120Q, Z=5EH:

X=1001001B: This is a binary number represented in base 2. It has a value of 73 in decimal notation (base 10). The subscript "B" indicates that the number is in binary format.

Y=120Q: This number is represented using an unknown base, denoted by the subscript "Q." Without knowing the base, it's not possible to determine the exact value of Y or establish a relationship with the other numbers.

Z=5EH: This number is represented in hexadecimal notation (base 16). It has a value of 94 in decimal notation (base 10). The subscript "E" indicates that the number is in hexadecimal format.

Without knowing the base for Y, it is not possible to establish a direct relationship between X, Y, and Z.

learn more about physical here

https://brainly.com/question/9477180

#SPJ11

Answer:

the series circuit has one current so if you don't disconnect the wires nothing happens

but if you disconnect the wires in series circuit, the current stop and the current doesn't go to the end

Explanation:

(≧▽≦)hope it helps (≧▽≦)

The solubility of the substances from MOST soluble in water to LEAST soluble in water is OHCH₂CH₂OH > CH₃CH₂CH₂OH > CH₃CH₂CH₂CH₃

The correct order is B > A > C

The solubility of a substance is the amount in moles of a substance that can dissolve in a given volume of solvent at that temperature.

The solubility of a substance depends on the nature of the solvent and solute. For example, polar substances dissolve very well in polar solvents but sparingly in non-polar solvents.

Alkanols are soluble in water because of the -OH group. The solubility of alkanols decreases with an increase in the molecular weight of the alkanol.

Learn more about the solubility of alkanols at: https://brainly.com/question/14481996

#SPJ1

Answer:

Chlorine --> 89%

Explanation:

Step 1) Add each element's amu up to get the total mass of the compound.

12.011+1.008+3(35.453) = 119.378.

Step 2) Divide the total mass of chlorine by the total mass of the compound.

3(35.453) = 106.359

106.359/119.378 = 0.8909430548.

Step 3) Now multiply by 100 to get the percentage.

0.8909430548*100 = 89.09430548%

Step 4) Estimate and submit your answer

89.09430548% estimates to 89%

The first three stages of the oxidation of one molecule of glucose (glycolysis, pyruvate breakdown, and the citric acid cycle) produce energy in the form of ATP and high-energy electrons in the form of NADH and FADH2.

 These are the two main products of the process, and they go on to drive the final stage of oxidation, oxidative phosphorylation.The three stages produce energy in the form of ATP and high-energy electrons in the form of NADH and FADH2. Glycolysis, the first step in cellular respiration, breaks down glucose into pyruvate, which can then enter the Krebs cycle (also known as the citric acid cycle).

During pyruvate oxidation, which is the second stage of cellular respiration, the pyruvate produced during glycolysis is converted into acetyl CoA. Finally, the citric acid cycle takes the acetyl CoA produced during the previous step and uses it to produce more ATP, NADH, and FADH2.

Learn more about ATP visit : brainly.com/question/897553

#SPJ11

The given statement "scientists have reached a main milestone in learning how to reverse aging" is true because scientists have investigated that lifestyle interventions, such as proper and healthy diet, exercise and supplements can reverse aging.

Scientific studies reveal that lifestyle interventions, including diet, exercise, and supplements can reverse aging. For instance, in one of the studies, patients were put on a healthy diet, had to take particular supplements, and exercise. After 8 weeks of following this plan, their epigenetic age was reversed by almost two years.

Thus, the given statement correctly specifies that scientists have achieved a big milesotme to reduce or reverse aging.

"

Complete question

scientists have reached a key milestone in learning how to reverse aging

True

False

"

You can learn more about Scientific studies at

https://brainly.com/question/28145780

#SPJ4

A balloon that can hold 100.0 liters of air, if it blow up this balloon with 3.0 moles of oxygen gas at a pressure of 1.0 atmosphere, the temperature of the balloon is approximately 402.33 K.

To solve this problem, we can use the ideal gas law, which relates pressure, volume, temperature, and the number of moles of gas:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature.

We know that the balloon can hold 100.0 liters of air, and we're blowing it up with 3.0 moles of oxygen gas at a pressure of 1.0 atmosphere. We can convert the volume to liters and the pressure to atmospheres:

V = 100.0 L
P = 1.0 atm

We can also look up the value of the gas constant R, which is 0.08206 L atm/mol K.

Now we can rearrange the ideal gas law to solve for the temperature:

T = PV/nR

Plugging in the values we know, we get:

T = (1.0 atm)(100.0 L)/(3.0 mol)(0.08206 L atm/mol K)
T = 402.33 K

Therefore, the temperature of the balloon is approximately 402.33 K.

To know more about pressure visit:

https://brainly.com/question/30888034

#SPJ11

Answer:

I'd wanna see whats in the nuclues

Explanation:

Because its interesting to know what and how it really looks like up close. I also wanna know if an electron really has a light mass

i) you would need 60 mL of the 50X TAE Buffer stock. ii)You would need 2940 mL of distilled water (dH2O) to make up the 1X TAE Buffer to a total volume of 3 liters.

To dilute the 50X TAE Buffer to a 1X working solution for a total volume of 3 liters, you would use the following calculations:

(i) 1X TAE Buffer - stock:

For a 1X TAE Buffer, the dilution factor is 50X. Since you want to prepare a total volume of 3 liters, the volume of the stock solution needed can be calculated as follows:

Volume of 50X TAE Buffer stock = (Final volume / Dilution factor)

                              = (3 L / 50)

                              = 0.06 L or 60 mL

Therefore, you would need 60 mL of the 50X TAE Buffer stock.

(ii) 1X TAE Buffer - dH2O: To make up the remaining volume with distilled water (dH2O), subtract the volume of the stock solution from the final volume:

Volume of dH2O = (Final volume - Volume of 50X TAE Buffer stock)

             = (3 L - 0.06 L)

             = 2.94 L or 2940 mL

Therefore, you would need 2940 mL of distilled water (dH2O) to make up the 1X TAE Buffer to a total volume of 3 liters.

To know more about Distilled water visit-

brainly.com/question/26181855

#SPJ11

Answer:

Pore spaces filled with water

Answer:

Sodium chloride

Explanation:

The heat of vaporization of the substance is approximately 8,922.982 joules per gram.

To calculate the heat of vaporization (ΔHvap) of a substance, we need to use the formula:

ΔHvap = q / m

where q is the heat energy required for vaporization and m is the mass of the substance.

Given that 10,776 cal (calories) are required to vaporize 5.05 g, we first need to convert the heat energy from calories to joules since the final answer should be in joules per gram.

1 cal = 4.184 J

So, 10,776 cal = 10,776 * 4.184 J = 45,043.184 J

Now we can calculate the heat of vaporization:

ΔHvap = 45,043.184 J / 5.05 g

ΔHvap ≈ 8,922.982 J/g

Therefore, the heat of vaporization of the substance is approximately 8,922.982 joules per gram.

Learn more about heat of vaporization here:

https://brainly.com/question/29210982

#SPJ11

The number of possible Microstates there are for 6 molecules to fit in 6 boxes, when 4 molecules are pointing right and 2 molecules are pointing left are; 15 Microstates

This is very much similar to combination problems in mathematics.

Hence, the number of ways to arrange all six molecules according to the given description is;

Hence, we have; (6×5)×4!/(2!) ×4!

Therefore, we have; 30/2×1

Hence, the number of possible Microstates is; 15 Microstates

Read more on possible Microstates;.

https://brainly.com/question/14973565

Answer:

the answer is B

Explanation:

the ice puts 8ts cold into the water taking it away from the ice

Answer:

B. hydrochloric acid and lithium hydroxide

Explanation:

Answer:

thank you!

the answer is B) hydrochloric acid and lithium hydroxide.

Explanation:

have a rest of your day.

The hydrocarbon among the given choices is CH₃CH₂CH₂CH₃.

CH₃CH₂CH₂CH₃ represents a hydrocarbon known as butane. Hydrocarbons are organic compounds consisting solely of hydrogen (H) and carbon (C) atoms. Butane is an example of an alkane, which is a type of hydrocarbon that contains only single bonds between carbon atoms.

In the chemical formula CH₃CH₂CH₂CH₃. each "CH₃" represents a methyl group, which consists of one carbon atom bonded to three hydrogen atoms. The four methyl groups are attached in a linear arrangement, resulting in a straight-chain hydrocarbon with four carbon atoms.

Hence, the hydrocarbon CH₃CH₂CH₂CH₃ is butane.

Learn more about hydrocarbons here:

https://brainly.com/question/30666184

#SPJ 4

The temperature at which zirconium becomes superconducting in degrees celsius is -272.604° C.

Superconductivity is a phenomenon where a material loses all electrical resistance below a certain temperature, called the critical temperature. In other words, the electrical conductivity of a superconductor is infinite below this temperature.

This property has many practical applications, including in high-field magnets, electrical power transmission, and medical imaging equipment.

The underlying mechanism of superconductivity is not yet fully understood and is an active area of research in physics and materials science. There are several theoretical models that attempt to explain the behavior of superconductors, but more research is needed to fully understand the phenomenon.

Therefore, The temperature at which zirconium becomes superconducting in degrees celsius is -272.604° C.

To know more about superconducting refer to:

brainly.com/question/20709121

#SPJ4

Answer:

I think C is the answer

Explanation:

because Mitosis results in two identical daughter cells......

Formation and dissociation constants are related in that they are inverses of each other and must have a product that equals the equilibrium constant of the reaction.

Formation and dissociation constants, also known as Kf and Kd respectively, represent the equilibrium concentrations of the reactants and products in a chemical reaction.

Kf is the constant of formation, which is the product of the concentrations of the products of the reaction, divided by the product of the concentrations of the reactants.

Kd is the dissociation constant, which is the product of the concentrations of the reactants, divided by the product of the concentrations of the products .

Kf and Kd are related in that the product of Kf and Kd must equal Kw, which is the equilibrium constant for the reaction.

The value of Kw is constant, meaning that regardless of the equilibrium concentrations of reactants and products, Kf and Kd must be inverses of each other such that the product of Kf and Kd must equal Kw.

Therefore, formation and dissociation constants are related in that they are inverses of each other and must have a product that equals the equilibrium constant of the reaction.

to know more about dissociation constants refer here:

https://brainly.com/question/28197409#

#SPJ11

Direct expansion systems require the vapour exiting the evaporator to be superheated to avoid liquid slugging, to improve the effectiveness of the evaporator and to maintain the stability of the compressor. (B) Forced draft and induced draft evaporators differ in the way air is introduced into them. (C) CClF2CF3 (also known as R12) is a chlorofluorocarbon refrigerant. (ii) Tetrafluoroethane (also known as R134a) is a hydrofluorocarbon refrigerant and H2O is not classified as a refrigerant. (D) The partial pressure of hydrogen in the evaporator is 1.6 mmHg.

(a) Direct expansion systems are those in which the refrigerant in the evaporator evaporates directly into the space to be cooled or frozen. The evaporator superheat is used to make sure that only vapor and no liquid is carried over into the suction line and compressor. Superheating is required for the following reasons :

(b) Forced draft and induced draft evaporators differ in the way air is introduced into them. In an induced draft evaporator, a fan or blower is positioned at the top of the evaporator, and air is drawn through the evaporator from the top. In a forced draft evaporator, air is propelled through the evaporator by a fan or blower that is located at the bottom of the evaporator. Forced draft evaporators are frequently used in direct expansion systems because they allow for better control of the air temperature. Because the air is directed upward through the evaporator and out of the top, an induced draft evaporator is less effective at keeping the air at a uniform temperature throughout the evaporator.

(c) (i) CClF2CF3 (also known as R12) is a chlorofluorocarbon refrigerant.

(ii) Tetrafluoroethane (also known as R134a) is a hydrofluorocarbon refrigerant.

(iii) H2O is not classified as a refrigerant.

(d) The function of hydrogen gas in an absorption refrigeration system (NH3/H2O/H2) is to increase the heat of reaction between ammonia and water.

The pressure of hydrogen gas in the evaporator of an absorption refrigeration system can be determined using the formula, Pa/Pb = (Ta/Tb)^(deltaS/R),

where Pa = partial pressure of hydrogen in the evaporator, Ta = evaporating temperature, Tb = condensing temperature, Pb = partial pressure of hydrogen in the absorber, deltaS = entropy change between the absorber and evaporator, R = gas constant.

Substituting the given values, Ta = −2.0 ∘C = 271 K ; Tb = 38.0 ∘C = 311 K ; Pb = atmospheric pressure = 1 atm ;

deltaS = 4.7 kJ/kg K ; R = 8.314 kJ/mol K

we get, Pa/1 atm = (271/311)^(4.7/8.314)

Pa = 0.021 atm or 1.6 mmHg

Therefore, the partial pressure of hydrogen in the evaporator is 1.6 mmHg.

Thus, Direct expansion systems require the vapour exiting the evaporator to be superheated to avoid liquid slugging, o improve the effectiveness of the evaporator and to maintain the stability of the compressor. (B) Forced draft and induced draft evaporators differ in the way air is introduced into them. (C) CClF2CF3 (also known as R12) is a chlorofluorocarbon refrigerant. (ii) Tetrafluoroethane (also known as R134a) is a hydrofluorocarbon refrigerant and H2O is not classified as a refrigerant. (D) The partial pressure of hydrogen in the evaporator is 1.6 mmHg.

To learn more about chlorofluorocarbons :

https://brainly.com/question/18414838

#SPJ11

Answer: The given type of chemical reaction is a double replacement reaction, and each compound has the same set of ions.

Explanation:

When two different compounds chemically react with each other and their ions get exchanged with each other then it leads to the formation of two new compounds. This type of reaction is called double displacement reaction.

For example, \(KBr + AgNO_{3} \rightarrow KNO_{3} + AgBr(\downarrow)\)

Here, both KBr and \(AgNO_{3}\) are ionic compounds that leads to the formation of two new ionic compounds which are \(KNO_{3}\) and AgBr.

Thus, we can conclude that the given type of chemical reaction is a double replacement reaction, and each compound has the same set of ions.

C/ If Fe is greater than Fg, the negatively charged oil droplet will move freely toward the negatively charged plate.

In the Millikan oil droplet experiment, the negatively charged oil droplets are subjected to an electric field created by the charged plates. The electric force (Fe) acts on the oil droplet in a direction opposite to the gravitational force (Fg). When Fe is greater than Fg, the electric force overcomes the gravitational force, causing the negatively charged oil droplet to experience an upward force. As a result, the oil droplet moves freely upward toward the negatively charged plate.

Option B is incorrect because if Fe is equal to Fg, the forces balance each other, resulting in a stationary droplet. However, the question states that Fe is increased until it is greater than Fg, implying that the droplet is no longer stationary but moves in response to the electric force.

Therefore, option C is the correct answer, as it describes the effect of an electric field on the motion of a negatively charged oil droplet in the Millikan oil droplet experiment.

To learn more about Millikan oil droplet experiment, here

https://brainly.com/question/32330429

#SPJ4

Mobile water supply operations, such as water shuttles or relay pumping, must be performed In rural areas without public water distribution systems

A distribution systems includes all of the centers and devices connecting a transmission device to the customer's device. A traditional distribution device can consist of: Substations. Distribution Feeder Circuits. Switches.

Distribution systems, additionally referred to as dispensed computing, is a device with more than one additive placed on extraordinary machines that speak and coordinate movements so that it will seem like an unmarried coherent device to the end-user.

A dispensed device is computing surrounding wherein diverse additives unfold throughout more than one computer (or different computing gadgets) on a network. These gadgets cut up the work, coordinating their efforts to finish the task extra effectively than if an unmarried tool were accountable for the task.

Learn more about distribution systems here;

https://brainly.com/question/27905732

#SPJ4

A) high melting point

C) soluble in water

D) soluble in alcohol

E) does not conduct electricity in water

these options are a bit vague as some covalent substances dissolve in water / alcohol while some don't

the name of the hydrate LiOH·H2O is lithium hydroxide monohydrate, and it contains one water molecule per lithium hydroxide molecule.

The hydrate formula is written as LiOH·H2O. The dot in between LiOH and H2O indicates that there is a stoichiometric ratio of 1:1 between the lithium hydroxide and water molecules. The presence of water molecules makes this a hydrate.

Lithium hydroxide monohydrate is a chemical compound with the formula LiOH·H2O. It is a hydrate, meaning that it contains water molecules within its crystal structure. In this case, there is one water molecule associated with each lithium hydroxide molecule. The dot in between the LiOH and H2O indicates that there is a stoichiometric ratio of 1:1 between the lithium hydroxide and water molecules.

To know more about molecule visit:

https://brainly.com/question/19556990

#SPJ11

Answer:Atoms acquire the stable electron structure of a noble gas by losing electrons. An atom of an element in Group 1A has seven valence electrons. Among Group 1A and 2A elements, the group number is equal to the number of valence electrons in an atom of that element.

Explanation: Hope this help have an wonderful day and stay safe! :D

When an electron in a hydrogen atom undergoes the transition from the energy level. The wavelength is 97.3 nm.

The separation between similar points in successive waves of a waveform signal that have traveled across space or along a wire.

1 / λ = -1.097 x 107 m-1 ( 1/nf2 - 1/ni2 )

λ = wavelength in m

nf = final energy level = 1

ni = initial energy level = 7

1 / λ = -1.097 x 107 m-1 (1/16 - 1) = 1.097 x 107 m-1 (-0.9375)

1 / λ = 1.028 x 107 m-1

λ = 9.73x10-8 m = 97.3 nm

Thus, the wavelength, in nanometers, of the spectral line is 97.3 nm.

To learn more about wavelength, refer to the below link:

https://brainly.com/question/4433694

#SPJ1

After the termination of exposure to some drugs, there are withdrawal effects that are usually experienced by individuals.

Withdrawal effects occur when the body becomes physically dependent on a drug. When a drug is abruptly stopped, the body may experience a range of symptoms as it adjusts to the absence of the substance. These symptoms can range from mild to severe and can include anxiety, depression, irritability, insomnia, nausea, and even seizures.

The specific withdrawal effects will depend on the drug, the length of time the individual has been taking it, and the dosage. In some cases, medical supervision may be necessary to safely manage withdrawal symptoms. It's important to seek medical attention if you or someone you know is experiencing withdrawal effects after stopping drug use.

learn more about drugs

https://brainly.com/question/26254731

#SPJ11